1. pottersheep

2. pottersheep

3. Dido525

Well you know the length of an arc is just : |dw:1352055720516:dw|

4. pottersheep

Yep

5. pottersheep

The answe says a = 6400(11pi/12) = 18400 incase you would like to know

6. Dido525

|dw:1352055764189:dw|

7. Dido525

|dw:1352055973431:dw|

8. Dido525

|dw:1352056015738:dw|

9. pottersheep

Right. I understand how that is, but I don;'t get what the point of the 82.5 angle is?

10. Dido525

Okay :) . sorry I was into the problem so I solved it by mistake :P .

11. Dido525

You know that the total angle is the sum of those angles.

12. pottersheep

:)

13. pottersheep

SOrry the total angle of what?

14. Dido525

|dw:1352056167918:dw|

15. pottersheep

Can you please draw me a pic to label the ANgle, a and r ?

16. Dido525

|dw:1352056241933:dw|

17. pottersheep

hmmm okay I'll try to process this for a minute or two :D

18. Dido525

|dw:1352056361196:dw|

19. pottersheep

I GET IT, THANKS SO MUCH!!!!! What I was thinking was the angle was 15 degrees, and r was from N ro A....Blekh! ANyways thanks :D

20. Dido525

Welcome :) .